with oil, gas, water as working fluids, the experiment studies of frictional pressure drop characteristics of oil gas, gas water two phase flow in vertical helically coiled tubes were carried out.
分别以油气、气水为工质,对立式螺旋管内气液两相流的摩擦阻力特性进行实验研究。
with the existing allocation of the traditional air control valve, its light weight, compact circuit, easy to install, reliable performance, pressure drop characteristics of a small loss.
与现有传统的气控分配阀相比,其具有重量轻、油路紧凑、易于安装、性能可靠、压力失降小的特点。
the new correlation can provide satisfied predictions to the pressure drop characteristics of r410a-oil mixture flow boiling inside enhanced tubes.
新关联式能够很好的预测r410a-油混合物在强化管内流动沸腾的压降特性。